论文标题
量子通道容量的增强性
An additive refinement of quantum channel capacities
论文作者
论文摘要
量子通道的能力是量子信息理论中的基本数量。理想的财产是能力的增强性。但是，对于已确定为容量度量的少数数量，这是无法实现的。渐ing正规化通常是必要的，因此臭名昭著地研究能力。在这项工作中，通过对量子通信的物理设置进行适当的改进，我们证明了可用于量子频道的量子通道容量的附加量。这种改进，只有距离标准设置的一小步，与量子理论的原理一致，它进一步证明了von Neumann熵是量子信息的基石。
Capacities of quantum channels are fundamental quantities in the theory of quantum information. A desirable property is the additivity for a capacity. However, this cannot be achieved for a few quantities that have been established as capacity measures. Asymptotic regularization is generically necessary making the study of capacities notoriously hard. In this work, by a proper refinement of the physical settings of quantum communication, we prove additive quantities for quantum channel capacities that can be employed for quantum Shannon theorems. This refinement, only a tiny step away from the standard settings, is consistent with the principle of quantum theory, and it further demonstrates von Neumann entropy as the cornerstone of quantum information.
